A-few-second synthesis of silicon nanoparticles by gas-evaporation and their self-supporting electrodes based on carbon nanotube matrix for lithium secondary battery anodes

Kowase, Takayuki; Hori, Keisuke; Hasegawa, Kiichi; Momma, Toshiyuki; Noda, Suguru

doi:10.1016/j.jpowsour.2017.07.115

Cited by 21 publications

(8 citation statements)

References 35 publications

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“…Silicon (Si) has been regarded as the best candidate for the next generation lithium ion batteries anode due to its ultrahigh theoretical capacity (3579 and 4200 mAh g −1 for Li 3.75 Si and Li 4.4 Si, respectively), 1–3 low working potential (~0.5 V vs. Li/Li + ) 4 and abundant sources. However, Si suffer from serious volume expansion (>300%) because of the alloying reaction during the charging/discharging, resulting in the capacity fading and consumption of electrolyte 5–7 .…”

Section: Introductionmentioning

confidence: 99%

Influence of surfactants on rheological behaviors of polyacrylonitrile/dimethyl sulfoxide/silicon blending polymer solutions

Yuan

Guo

Ren

et al. 2021

J of Applied Polymer Sci

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KH550, KH560, CTAB, and F127 were adopted to modify silicon (Si) to improve the dispersity and stability of Si in the polyacrylonitrile/dimethyl sulfoxide (PAN/DMSO) polymer solutions. The influence of surfactants on rheological behaviors of PAN/DMSO/Si blending polymer solutions was investigated by an advanced solution and melt rotation rheometer. The homogeneity and stability were also studied. The results showed that the surfactants could change the viscosity dependence of blending polymer solutions on shear rate, temperature and storage time by increase the steric hindrance of Si. Among the four solutions, PAN/DMSO/Si blending polymer solution with F127 exhibited the lowest viscosity, activation energy and the smallest structural viscosity index and exhibited the trend close to the Newtonian fluids. Moreover, PAN/DMSO/Si blending polymer solution with F127 exhibited the best dispersity and stability, indicating its best physical properties and machinability.

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Section: Introductionmentioning

confidence: 99%

Influence of surfactants on rheological behaviors of polyacrylonitrile/dimethyl sulfoxide/silicon blending polymer solutions

Yuan

Guo

Ren

et al. 2021

J of Applied Polymer Sci

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“…In general, energy conversion and storage technologies use electrochemical reactions for centuries using carbon-based materials i.e., graphite. [97][98][99] Since, enormous physical and electrical properties including larger specic surface areas, higher electrical conductivity, as well as outstanding mechanical properties of carbon materials, such as fullerenes, 100-102 carbon nanotubes, [103][104][105][106] and graphene [107][108][109][110] were due to recent breakthroughs in sp 2 -hybridized in the carbon atom, have improved electrochemical performance. Aer carbon-based materials like graphene, the other 2D nanomaterials with promising energy storage potential, such as TMDs [111][112][113][114] and phosphorene, [115][116][117][118] have also attracted researchers' attention.…”

Section: Mxene-based Electrochemical Batteriesmentioning

confidence: 99%

Two-dimensional MXenes: recent emerging applications

2022

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“…At the same time, 1D or 2D carbon is beneficial to the network connectivity of ETN, which improves the conductivity and its stability with strain. This is critical for achieving good cycle stability and C‐rate capability for especially high‐capacity AMs . However, 0D conductive carbon is beneficial to uniform electronic contact with AM.…”

Section: Controlling Etn In Composite Electrodesmentioning

confidence: 99%

Strategies for Building Robust Traffic Networks in Advanced Energy Storage Devices: A Focus on Composite Electrodes

Wang

Min

et al. 2018

Advanced Materials

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portable electronics, cell phones, electrical vehicles (EVs), aerospace, etc. For advanced batteries, higher and higher energy density and/or power density, long cycling stability, good device safety, and low-cost are the primary goals. Since the energy density is mainly dependent on the specific capacity and loading level of active materials (AMs), AMs usually dominate the volume and weight inside the batteries. Because of this, tremendous efforts have been focused on high-performance AMs. However, the electrochemical performance of energy storage devices (ESDs) is fundamentally determined by a collective contribution or teamwork of all the components: AMs, electrolyte, separator, conductive agent, binders, etc. More importantly, with the increasing interests on high-capacity AMs (e.g., silicon, sulfur, Li-rich cathode, etc.), it becomes very clear that the "traffic system" (i.e., the charge transport system) plays very critical roles in the performance of the high-capacity AMs. Take silicon anode for example, a durable and flexible conductive network inside the electrode composite has been vital for addressing the big volume change issue. In this case, high-performance binders and conductive agent that can generate advanced conductive network are the keys. [2] In addition, with the increasing interests on EVs and flexible electronics, building a powerful and robust charge transport system inside ESDs is an urgent and critical task to support fast charging/ discharging capability and even flexibility of ESDs. In short, with the fast development of energy storage technologies, EVs, cell phones, etc., there is a critical, urgent, and challenging task on building powerful and durable charge transport system in next-generation advanced ESDs. Charge Transport Inside ESDsThe thriving of big cities highly relies on a powerful traffic system that transports the people, foods, products, etc. Similar to this picture, ESDs are powered by the transportation of charges, including both ions and electrons. As illustrated in Figure 1a, one can analogize the charge transport system and AMs in the electrodes of ESDs to the traffic system and buildings (i.e., host system of people), respectively. This analogy example not only help to explain the relationship between The charge transport system in an energy storage device (ESD) fundamentally controls the electrochemical performance and device safety. As the skeleton of the charge transport system, the "traffic" networks connecting the active materials are primary structural factors controlling the transport of ions/electrons. However, with the development of ESDs, it becomes very critical but challenging to build traffic networks with rational structures and mechanical robustness, which can support high energy density, fast charging and discharging capability, cycle stability, safety, and even device flexibility. This is especially true for ESDs with high-capacity active materials (e.g., sulfur and silicon), which show notable volume change during cycling. Therefore, there is an ur...

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A-few-second synthesis of silicon nanoparticles by gas-evaporation and their self-supporting electrodes based on carbon nanotube matrix for lithium secondary battery anodes

Cited by 21 publications

References 35 publications

Influence of surfactants on rheological behaviors of polyacrylonitrile/dimethyl sulfoxide/silicon blending polymer solutions

Influence of surfactants on rheological behaviors of polyacrylonitrile/dimethyl sulfoxide/silicon blending polymer solutions

Two-dimensional MXenes: recent emerging applications

Strategies for Building Robust Traffic Networks in Advanced Energy Storage Devices: A Focus on Composite Electrodes

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